1. PVsyst SA Announcements (read only)

   1. Latest news

      9

      posts

      • 
      • Webinar Q&A
      • By Lazare Fesnien, January 7, 2025
   2. PVsyst main changes

      5

      posts

      • 
      • PVsyst 8.0.17: main changes
      • By Robin Vincent, September 15, 2025

2. FAQ (read only)

   1. Installation and use of PVsyst

      61

      posts

      • 
      • License activation error on a Virtual Machine
      • By Lazare Fesnien, May 26, 2025
   2. Meteo data

      25

      posts

      • 
      • New circumsolar treatment in V 7.0
      • By Bruno Wittmer, June 8, 2020
   3. PV Components

      26

      posts

      • 
      • New power sharing interface (v7.2.15)
      • By Michele Oliosi, August 8, 2022
   4. Shadings and tracking

      27

      posts

      • 
      • Electrical shading losses: partition model
      • By Michele Oliosi, February 19, 2024
   5. Simulations : parameters

      26

      posts

      • 
      • How to optimize simulation time
      • By Lazare Fesnien, October 19, 2023
   6. Simulations : results

      22

      posts

      • 
      • Since version 6.27, the electrical shading loss has changed, why ?
      • By Michele Oliosi, March 14, 2023
   7. Standalone and pumping systems

      5

      posts

      • 
      • Can I use a flow battery in PVsyst ?
      • By André Mermoud, June 24, 2019

3. Your questions about PVsyst

   1. How-to

      2.9k

      posts

      • 
      • PR - PRBIF
      • By Linda Thoren, 9 hours ago
   2. Problems / Bugs

      3k

      posts

      • 
      • 3D scene
      • By Linda Thoren, 16 hours ago
   3. Meteo data

      882

      posts

      • 
      • Monthly Meteorological Data Input to PVsyst (TMY – Meteonorm 7.3)
      • By Linda Thoren, 14 hours ago
   4. PV Components

      782

      posts

      • 
      • Difference in Produced Energy while comparing with the ageing
      • By Linda Thoren, Monday at 08:59 AM
   5. Shadings and tracking

      1.7k

      posts

      • 
      • Tracking angle limit and effect on daytime production
      • By Michele Oliosi, 15 hours ago
   6. Simulations

      2.8k

      posts

      • 
      • Solar Fraction (SF) > 100% in stand-alone PV + battery systems – clarification on E_User vs E_Load definition
      • By André Mermoud, Tuesday at 01:54 PM
   7. Suggestions

      691

      posts

      • 
      • Nominal discount rates, LCOE and PBP calculations
      • By Hizir Apaydin, Monday at 01:48 PM

4. Your questions about PVsystCLI

   1. How-to

      41

      posts

      • 
      • Command for saving a PDF files using the CLI
      • By Hizir Apaydin, December 18, 2025
   2. Problems / Bugs

      45

      posts

      • 
      • besoin d'activation pvsyst 70
      • By Hizir Apaydin, December 8, 2025
   3. Suggestions

      1

      post

      • 
      • More tools to convert meteorological data
      • By shaoyiren, October 27, 2025